Max ams



(No Model.)

M. AMS.

EVAPORATING APPARATUS.

No. 399,311. Patented Mar. 12, 1889.

INVENTEJR WITN E55 E5.

N. PEIERS, Phmn-umu n her, Wuhm um. D. c

lhviTEn STATES MAX arts, or

PATENT ()EEIcE.

YORK, N. v.

EVAPORATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 399,311, dated March 12, 1889.

Application filed November 12, 1888. $erial No. 290,585. (No model.)

To (LZZ whom it may (ZOTLOBIIL:

Be it known that 1, MAX Arts, of New York city, New York, have invented an Improved Evaporating A1)paratus. of which the following is a s )ecitication.

This invention relates to an apparatus for cooking, evaporating, or concentrating various substancesfor instance, fruit-juice and other articles of food, glycerine, d'c.

The apparatus is so constructed that the vapors that arise from the substances that are being treated are continually drawn oit, and so that such substances are kept continually in motion. Thus the evarmrating process is accelerated and burning is prevented.

The invention consists in the various features of improvement more Fully pointed out in the claim.

In the accompanying drawings, Figure 1 is a front elevation of my improved apparatus. Fig. 2 is a top view thereof with chamber hremoved. Fig. 3 is an end view of Fig. 1, looking at its "left-hand side and with the outer wall removed. Fig. l is a vertical transverse section through one of the evaporating troughs or vessels.

The letters (I, a o (I. represent a suitable series of troughs or vessels placed below and. in ii'rontof oneanother, as shown in Fig. Each trough is inclined--thc first and third trough in one direction and the second and fourth trough in the opposite direction. Thus it will be seen that the lowermost end of any one trough is above the uppermost end of the trough next below. Each trough is provided with a double bottom, I), to constitute a steamchamber extendin below the entire length of the trough. These Steml'lCllIll'lbOlS communicate at one end. with the steam-inlet pipes c and at the other end with the steam-outlet pipes c.

The troughs a are closed partially at each end by the end walls, (I. These walls, however, do not extend to the top of the trough, but only partly up, so as to leave an open space on top. These open spaces are indicated by the lfull black shading in Fig. 3. Through the at the uppermost end ot each trough.

Thus

the liquid that is being cooked, concentrated, or evaporated can flow continuously from the uppermost trough to the troughs next below, and can be finally drawn off from the dis charge-tube c at the bottom of the apparatus. Samples of the substance can at any time be taken at any of the tubes 0, and thus the process can be kept'under control.

Each trough a should be provided with a cover, 1 At one end (right-hand end in Fig. 1) all the troughs are in direct communication with the atmosphere through the open end wall, (I; but at the other end all the troughs open into a chamber, 71. \Yithin this chamber there is hung upon a shaft a tan-wheel, '1', revolved by suitable power. This fan-wheel will draw the vapors or steam arising from the substances under treatment into the chamber 71, from whence they escape into the free air through the usual opening around the tanwheel. The arrows in chamber h of Fig. 1 indicate the motion of the steam or vapors.

The operation of the apparatus will be readily understood. The substance to be cooked, concentrated, or evaporated is poured into the uppermost trough, and will ilow from trough to trough until it is discharged through tube 6. Steam, being admitted into the double bottom, will act upon the flowing substance and cook, evaporate, or concentrate it. During the process the vapors arising from the substance under treatment will be continually drawn off by the fan-wheel 1'. Thus the operation of cooking is greatly accelerated. Moreover, as the substance under treatment is in. continuous motion, it will not become burned at the bottom of the troughs.

\Vhat I claim is- The combination of a series of ctnnmunicating inclined troughs having double bottoms, covers, and steam inlet and discharge pipes, with open walls at one end and with a vaporcollecting chamber at the other end, into which the several troughs open, and with a fan-wheel within said vapor-colleetin g chamber, substantiall y as specified.

MAX AMS.

\Yii'nesses:

'1 v. Bnncsns, HENRY E. RoEoEn. 

